.sub-heading{
    font-size: 1em;
    margin: 20px auto;
    max-width: 50%;
}
/*banner开始*/
#banner{
    margin: 0px;
    height: 1000px;
    text-align: center;
    width: 100%;
    color: #ffffff;
    background: url(../media/back1.png) no-repeat;
    -webkit-background-size: cover;
    background-size: cover;
}
.transparent-mask{
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.3);
}
#banner .inner{
    max-width: 40%;
    text-align: center;
    margin: 0 auto;
    position: relative;
    top: 200px;
}
#banner .inner h1{
    font-family: ".SF NS Display";
    font-size: 2.0em;
}
#banner p{
    font-size: 1.3em;
    padding: 20px;
}
#banner button{
    width: 150px;
    height: 60px;
    background-color: #cd7810;
    border-radius: 30px;
    margin-top: 200px;
    text-align: center;
    -webkit-transition:  1s;
    -moz-transition:  1s;
    -ms-transition:  1s;
    -o-transition:  1s;
    transition:  1s;
}
#banner button:hover{
    -webkit-transform: scale(1.2);
    -moz-transform: scale(1.2);
    -ms-transform: scale(1.2);
    -o-transform: scale(1.2);
    transform: scale(1.2);;
}
#banner button:focus{
    outline: 0px;
}
#banner .inner .more{
    margin: 50px 0px;
}
#banner .inner .more p{
    font-size: 18px;
}
/*banner结束*/
/*content开始*/
.sec-1{
    background-color: #0a050f;
    color: #ffffff;
    text-align: center;
    height: 800px;
    padding: 100px 0px 0px 0px;
}
.wrapper{
    max-width: 1080px;
    margin: 0 auto;
    text-align: center;
}
.sec-1 .icon-group .icon{
    display: flex;
    float: left;
    width: 150px;
    height: 150px;
    line-height: 150px;
    background-color: #ffffff;
    border-radius: 75px;
    margin: 100px;
    text-align: center;
}
.sec-1 .icon-group .icon .fa{
    margin: auto;
    color: #0f0f0f;
    -webkit-transition:  1s;
    -moz-transition:  1s;
    -ms-transition:  1s;
    -o-transition:  1s;
    transition:  1s;
}
.sec-1 .icon-group .icon .fa:hover{
    -webkit-transform: scale(1.5);
    -moz-transform: scale(1.5);
    -ms-transform: scale(1.5);
    -o-transform: scale(1.5);
    transform: scale(1.5);
}
/*section2 start*/
.sec-2{
    background-color: #fe8f33;
    color: #1f0a2d;
    width: 100%;
    height: auto;
}
.sec-2 .half-img-text{
    width: 100%;
    height: 700px;
}
.sec-2 .img-sec{
    width: 45%;
    height: auto;
    float: left;
}
.sec-2 .img-sec img{
    width: 100%;
}
.sec-2 .text-sec{
    width: 55%;
    float: left;
    margin-left: 100px;
    margin-top: 100px;
    text-align: left;
    max-width: 500px;
}
.sec-2 .text-sec p{
    font-size: 18px;
    margin-top: 20px;
}
/* section2 stop*/
/*section3 start*/
.sec-3{
    width: 100%;
    height: auto;
}
.sec-3 .half-img-text{
    background-color: #000000;
    width: 100%;
    height: 700px;
    color: #FFFFFF;
    background: url(../media/sec3-back.png) no-repeat;
    -webkit-background-size: cover;
    background-size: cover;
}
.sec-3 .text-sec{
    width: 55%;
    padding-left: 150px;
    margin-top: 150px;
    text-align: left;
    /*max-width: 700px;*/
    float: left;
}
.sec-3 .half-img-text .text-sec h2{
}
.sec-3 .half-img-text .text-sec p{
    margin-top: 20px;
    font-size: 18px;
    max-width: 300px;
}
/*section3 stop*/
.sec-4{
    background-color: #306057;
    color: #ffffff;
    padding: 80px;
}
.sec-4 .head-wrapper{
    text-align: center;
}
.card-group{
    width: 60%;
    margin: 0 auto;
}
.clear-fix:after{
    content: '';
    display: block;
    clear: both;
}
.card{
    float: left;
    width: 50%;
    min-height: 300px;
    padding: 50px;
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
}
.card:first-child{
    background-color: rgba(0, 0, 0, 0.05);
}
.card:nth-child(2){
    background-color: rgba(0, 0, 0, 0.10);
}
.card:nth-child(3){
    background-color: rgba(0, 0, 0, 0.15);
}
.card:nth-child(4){
    background-color: rgba(0, 0, 0, 0.2);
}
.card h2{
    font-size: 20px;
}
.card p{
    margin-top: 30px;
}
/*content结束*/
